/Engine/Plugins/FX/Niagara/Source/Niagara/Classes/NiagaraDataSet.h
void AllocateGPUFreeIDs ( uint32 InNumInstances, [FRHICommandList](API\Runtime\RHI\FRHICommandList) & RHICmdList, [ERHIFeatureLevel::Type](API\Runtime\RHI\ERHIFeatureLevel__Type) FeatureLevel, const TCHAR * DebugSimName )